*{margin: 0;padding: 0;}
li{list-style-type: none;}
a{text-decoration: none;}
button{border: none; background-color: transparent; outline: none;}
input{border: none; background-color: transparent; outline: none;}
img{vertical-align: bottom;}
.clearfix:after,.clearfix:before{
    content: "";
    display: table;
}
.clearfix:after{
clear: both;
}
html,body{
  width: 100%;
  height: 100%;
}
#app{
  width: 100%;
  height: 100%;
}
.container{
  width: 100%;
  height: 100%;
}